/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 */

package org.apache.qpid.client.security.oauth2;


import java.util.Map;

import javax.security.auth.callback.CallbackHandler;
import javax.security.sasl.SaslClient;
import javax.security.sasl.SaslClientFactory;
import javax.security.sasl.SaslException;

public class OAuth2SaslClientFactory implements SaslClientFactory
{
    @Override
    public SaslClient createSaslClient(String[] mechanisms, String authorizationId, String protocol, String serverName,
                                       Map<String, ?> props, CallbackHandler callbackHandler) throws SaslException
    {
        for(String mech : mechanisms)
        {
            if (OAuth2SaslClient.MECHANISM.equals(mech))
            {
                if (callbackHandler == null)
                {
                    throw new SaslException("CallbackHandler must not be null");
                }
                return new OAuth2SaslClient(callbackHandler);
            }
        }
        return null;
    }

    @Override
    public String[] getMechanismNames(Map<String, ?> props)
    {
        return new String[] {OAuth2SaslClient.MECHANISM};
    }
}
